SMPN-638S is a premium high-performance semi-solid phenolic novolac epoxy resin in Kukdo’s SMPN series, designed for high-end composite manufacturing and severe environment protective coatings. It features ultra-high crosslinking density and excellent heat & chemical resistance, forming dense and tough cured coatings.
Superior heat resistance - Excellent high-temperature stability, high long-term service temperature, strong thermal oxidation stability
Strong chemical protection - Outstanding resistance to strong acids, alkalis, organic solvents and salt spray erosion
High crosslinking density - Multifunctional structure, high crosslinking density after curing, excellent anti-permeability
Semi-solid easy processing - Form suitable for various molding processes, balancing operability and molding stability
Excellent bonding strength - Strong adhesion to fibers, metals, concrete and other substrates, firm interface bonding
High-end composite materials - Matrix resin for carbon fiber/glass fiber reinforced composites, suitable for aerospace and automotive lightweight structural parts
Severe environment protective coatings - Heavy anti-corrosion coatings for high-temperature equipment and chemical reactors
Electronic and electrical encapsulation - Insulation encapsulation and impregnation of high-end electronic components and transformers
High-performance adhesives - Structural bonding of metal-metal and metal-composite materials, suitable for high-temperature working conditions
Wear-resistant floor materials - High-corrosion and wear-resistant floor coatings for chemical workshops and high-end manufacturing plants
| Appearance | Semi-solid resin, Light Yellow to Yellow |
| Type | Phenol-Type Phenolic Novolac Epoxy Resin |
| Epoxy Equivalent (g/eq) | 170-190 |
| Viscosity (25℃, Solution Viscosity) | H-J |
| Solid Content (%) | 100 |
| Density (20℃, g/cm³) | 1.17-1.19 |
| Glass Transition Temperature (Tg, ℃) | ≥140 |
| Color (Gardner) | ≤3.0 |
| Hydrolyzable Chlorine (ppm) | ≤200 |
| Long-Term Service Temperature (℃) | ≤180 |
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E-mail: wangxingqiang@ericwchem.com
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